Secretary of State McCord struggles with the realization that she may need to advise the Afghan government that a compromise with the Taliban may be better than a war with them. Also, Henry uses Dmitri as bait to convince a Russian spy to help the U.S., and Daisy returns from maternity leave and decides to finally tell Joe's mother about the baby.
The team investigates a ransomware attack that takes out the entire power grid for west L.A. and paralyzes the city. Also, as the first holiday season since the death of Sam’s wife approaches, he struggles to find the best way for his family to celebrate.
Ian tests Fiona's patience and resolve by bringing a messy “Occupy Fiona” movement right to her front door. Lip struggles to get Professor Youens to court for his DUI trial. Meanwhile, a now unemployed Frank goes on a job hunt and Carl gets a feisty new rehab client with a plan to help him get the rest of his tuition.